Environmental factors predicting fish community structure in two neotropical rivers in Brazil – ScienceOpen
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      Environmental factors predicting fish community structure in two neotropical rivers in Brazil

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          Abstract

          In order to assess the organization patterns of the fish communities in the Jogui and Iguatemi rivers, we collected fish with gill nets tri-monthly from November 1999 to August 2000. Hypostomus ancistroides and Parauchenipterus galeatus were the most abundant species in the Jogui and Iguatemi rivers, respectively. Longitudinal variation was more important than seasonal in determining the species composition in both rivers, and the difference between seasons was not statistically significant. Altitude was the most important factor determining species distribution.

          Translated abstract

          Com o objetivo de identificar os padrões de organização das comunidades de peixes dos rios Jogui e Iguatemi nós amostramos peixes através de redes de espera trimestralmente entre Novembro/1999 e Agosto/2000. Hypostomus ancistroides e Parauchenipterus galeatus foram as espécies de peixes mais abundantes nos rios Jogui e Iguatemi, respectivamente. A variação longitudinal foi mais importante que a sazonal na determinação da composição de espécies em ambos os rios e a diferença entre estações não foi significativa. A altitude foi o fator mais importante na determinação da distribuição das espécies.

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          Most cited references43

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          Non-parametric multivariate analyses of changes in community structure

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            Landscape Filters and Species Traits: Towards Mechanistic Understanding and Prediction in Stream Ecology

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              Canonical Correspondence Analysis: A New Eigenvector Technique for Multivariate Direct Gradient Analysis

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                Author and article information

                Journal
                ni
                Neotropical Ichthyology
                Neotrop. ichthyol.
                Sociedade Brasileira de Ictiologia (Maringá, PR, Brazil )
                1679-6225
                1982-0224
                March 2007
                : 5
                : 1
                : 61-68
                Affiliations
                [01] Dourados MS orgnameUniversidade Estadual do Mato Grosso do Sul orgdiv1Centro Integrado de Análise e Monitoramento Ambiental orgdiv2Laboratório de Ecologia Brazil
                [02] Rio Claro SP orgnameUNESP orgdiv1Depto de Ecologia Brazil
                Article
                S1679-62252007000100008 S1679-6225(07)00500108
                10.1590/S1679-62252007000100008
                a1e6055a-3058-497f-be55-aa4d2e70398c

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : October 2006
                : March 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 42, Pages: 8
                Product

                SciELO Brazil


                Community ecology,Freshwater fish,Environmental factors,Neotropical rivers

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